[1]崔可夫,章建新,朱倩倩,等.不同滴水处理对大豆根系生长及耗水特性的影响[J].大豆科学,2014,33(06):848-852.[doi:10.11861/j.issn.1000-9841.2014.06.0848]
　CUI Ke-fu,ZHANG Jian-xin,ZHU Qian-qian,et al.Effects of Different Drip Irrigation Treatments on Root Growth and Water Consumption Characteristics of Soybean in Each Soil Layer[J].Soybean Science,2014,33(06):848-852.[doi:10.11861/j.issn.1000-9841.2014.06.0848]
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不同滴水处理对大豆根系生长及耗水特性的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第33卷 期数: 2014年06期 页码: 848-852 栏目: 出版日期: 2014-12-25
Title:
Effects of Different Drip Irrigation Treatments on Root Growth and Water Consumption Characteristics of Soybean in Each Soil Layer
文章编号:
1000-9841.2014.06.0848
作者:
崔可夫; 章建新; 朱倩倩; 段丽娜
新疆农业大学 农学院，新疆 乌鲁木齐 830056
Author(s):
CUI Ke-fu; ZHANG Jian-xin; ZHU Qian-qian; DUAN Li-na
College of Agronomy,Xinjiang Agricultural University,Urumqi 830056 China
关键词:
滴水量; 大豆; 根系; 耗水特性
Keywords:
Drip water quantities; Soybean; Root; Water consumption characteristics
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.06.0848
文献标志码:
A
摘要:
为揭示滴水量对大豆根系生长的影响规律，以中黄35为材料，采用管栽方法研究了9次(W1）、11次（W2）、13次（W3）、15次（W4）4种滴水处理(总滴水量依次为21.0,25.8,30.6,35.4 kg.管-1)对0～100 cm土层含水量、根系干重分布和耗水等的影响。结果表明:随着滴水次数和总滴水量增加，直接增加0～40 cm土层含水量，间接减少40～100 cm土层贮水消耗量，增加总耗水量；开花前滴水抑制开花前40～60 cm、60～80 cm土层根系生长，增加开花结荚期滴水次数和总滴水量明显促进花荚期20～40 cm、40～60 cm、60～80 cm土层根系生长，增加结荚至成熟期根系总量，提高根系伤流量和0～20 cm土层根系活力，提高产量、产量与根干重比值和水分利用效率。因此，花前15 d适度干旱促进根系生长，开花期后增加滴水次数和总滴水量可促进根系生长，提高产量和水分利用效率；少量多次滴灌方式不利于40 cm以下土层大豆根系生长。
Abstract:
To reveal the influence of drip water quantities on root growth of soybean,taking Zhonghuang 35 as tested material,using tube plant method by 9(W1),11(W2),13(W3),15(W4)times of different drip irrigation quantities treatments(total amount of drip water were 21.0,25.8,30.6 and 35.4 kg.tube-1 ,respectively)the water content,root dry weight distribution and water consumption of soil layer in 0-100 cm were studied.The results showed that with the increase of drip times and the total amount of drip water,soil water content in 0-40 cm was increased directly,soil water consumption in 40-100 cm was indirectly reduced and the total water consumption was increased;root growth in 40-60 cm and 60-80 cm was inhibited before flowering when dripping before flowering,increasing dripping times and total amount of dripping water at flowering and pod stages could obviously promote root growth in 20-40 cm,40-60 cm and 60-80 cm at flowering and pod period,and increase the total amount of root from pod to mature stages,root flux activity and root activity in 0-20 cm,increase the yield,the ratio of yield and root dry weight and water use efficiency of soybean.It is beneficial to promote root growth when it was moderate drought fifteen days before flowering period,moreover increase times and total amount of drip irrigation after flowering period could promote root growth,and increase the yield and water use efficiency;repeated-small drip irrigation is detrimental to the root growth of 40 cm below.

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备注/Memo

基金项目：国家自然科学基金（31160266，31060179）。

第一作者简介：崔可夫（1988-），男，硕士，主要从事作物生理研究。E-mail:stephen150@sina.com。

更新日期/Last Update: 2014-12-29